Carbon transmitter



(No Model.)

G. W. GOSS. CARBON TRANSMITTER.

Wii asses 13y S eAl Imvgey's,

THE NORRIS PETERS 7N0 LTNO WASHINGTON D C UNITED STATES PATIENT OFFICE.

' GODFREY w. coss, on io oM mmnna CARBON TRANSMITTER;- l

V SPECIFICATION forming part of Letters Patent No. 605,575, dated J une 14;, 1898. Application filed April 20, 1897' Renewed. February 7, Serial n6. 669,450. (lilo model.)

To all whom it may concern/,-

Be it known that I, GODFREY W. Goss, a citizen of the United States, residing at Kokomo, in the county of Howard and State of Indiana, have invented a new and useful Carbon Transmitter, of which the following is a specification.

This invention relates to certain improve-. ments in carbon transmitters, and has for its object to provide a device ofthis character of a novel and simple nature provided with means for maintaining the carbon of the transmitter in a pulverulent or powdered condition, so as to permit the same from becoming packed or hardened, whereby the efficiency of the transmitter will be impaired.

The invention consists in a transmitter havin g its carbon-holder provided with an agitator device adapted to be moved therein in order to agitate or stir the pulverized carbon when the same shall have become packed or hardened from dampness or'anyother cause,

so as to maintain the variable resistance.

The invention also contemplates Icertain novel features of the construction, combina: tion, and arrangement of the various parts of the improved transmitterwhereby certain important advantages are attained,and the device is made. simpler, cheaper and other-J wise better adapted and more convenient for use, all as will be hereinafter fully set forth;

The novel features of the invention will be carefully definedin the claims.

In order thatmylinvention, maybe the better understood, I have shown in the accompanying drawings a carbon transmitter provided with my improvements, in which Figure 1 is a sectional View taken axially through the transmitter provided with my im-. provements. ,Fig. 2 is a sectional view taken through the carbon-holder, but showing the sleeve and binding-post thereof in elevation. Fig. 3 is a face view of the carbon-holder, showing the agitator in place therein.

In the views, 1 indicates the casing of the transmitter, -and 2 indicates the diaphragm arranged in front of the carbon-holder 3,which" is held in the casing in the usual way, said casing andcarbon-holder being, as shown in Fig. 3, of circular form, and the carbon holder being provided in its front face with a chambe'r for the reception of the pulverized carbon, as shown at 4. i The carbon-holder 3 is connected with the end of a sleeve 5,one end of which communicates withthe chamber 4;, wherein is held the'powdered carbon, while the opposite end of said-sleeve extends from the rear surface of the carbon-holderoutside of the casing 1 and is provided with a screw-threaded portion 6,-.whereon is held a nut 'Z for securing the carbon in place in the casing, said screwthreaded port-ion being also provided with a .nut 8, servingto hold to said sleeve a wire or being provided at its projecting rear end with a head or enlargement 10, forming-a knob or handle by means of jwhich the spindle may be turned oroperatedwithin the sleeve;

. The forward endjof the spindle orv stem '9, or that end thereof which projects intoithe' chamber in the frontface of the carbon-holder, is provided with .oppositelyepr'ojecting arms 11, held in placexto'the spindleiorstei'n by means of a screw 12, said arms 11 being, as

shown in Fig 1, curved toconform to the walls of the chamber wherein the powdered carbon is contained and forming an'agitator bymeans of which the powderedcarbon .in said chamber may be stirred or agitated.

By this construction and arrangement of the parts it will be seen that when the powdered carbon 4 contained in the chamber of the front face of the carbon-holder 3 shall have become packed or hardened from any cause whatever the spindle or stem 9 maybe turned or rotated within the sleeve 5, so that the arms 11 on the end of said stem orspindle will stir up or agitate the powdered carbon 4: and prevent the efficiency of the transmitter from becoming impaired.

It will also be seen from the above description that the device constructed in accordance with my invention is of an extremely simple and inexpensive nature and is especially well adapted for use in connection with carbon transmitters, since it permits of conveniently stirring or agitating the powdered carbon from time to time, as may be necessary, and it will also be obvious from the above description that the invention is capable of some modification without material departure from its principles and spirit, and for this reason I do not wish to be understood as limiting myself to the precise form and arrangement of the parts herein set forth.

Having thus described my invention, I claim- 1. I11 a carbon transmitter,the combination of a carbon-holder having a chamber to receive the powdered carbon, and an agitating device separate from the carbon-holder and arranged within the chamber thereof for agitating the powdered carbon in said chamber, independently of any movement of said carbon-holder, substantially as set forth.

2. In a carbon transmitter, the combination of a carbon-holder having a chamber to receive the powdered carbon, and a stirring device disassociated from said carbon-holder and arranged in said chamber to agitate the carbon therein without affecting the adjustment of the carbon-holder, substantially as set forth.

3. In a carbon transmitter, the combination of a carbon-holder having a chamber for the reception of powdered carbon, and a rotative stirring device disassociated from said earbon-holder and arranged in said chamber to agitate the powdered carbon therein without aifecting the adjustment of said carbonholder, substantially as set forth.

4. In a carbon transmitter, the combination of a carbon-holder having a chamber to receive the powdered carbon, a movable stem or spindle, and a stirring device carried on said stem or spindle and extending in said chamber, said stirring device beingindependent of the carbon-holder and arranged when the stem or spindle is moved to agitate the powdered carbon in the chamber without affecting the adjustment of said carbon-holder, substantially as set forth.

5. In a carbon transmitter, the combination of a carbon-holder having a chamber for the reception of powdered carbon, a rotativelymounted stem or spindle, and a stirring device carried by the stem or spindle and arranged in the chamber, said stirring device being independent of the carbon-holder and adapted when the stem or spindle is turned to agitate the powdered carbon in said chamher without affecting the adjustment of said carbon-holder, substantially as set forth.

6. In a carbon transmitter, the combination of a carbon-holder having a chamber for the reception of powdered carbon, a sleeve carried by the carbon-holder and having one end adapted for communication with the chamber thereof, a stem or spindle movable in said sleeve, and a stirring device carried by the stem or spindle and extending in said chamber, said stirring device being arranged when the stem or spindle is moved to agitate the powdered carbon in said chamber, substantially as set forth.

7. In a carbon transmitter, the combination of a carbon-holder having a chamber for the reception of powdered carbon, a sleeve connected electrically with the carbon-holder and having one end adapted for communication with the chamber thereof and its opposite end provided with a binding-post, a stem or spindle movable in the sleeve, and a stirring device carried on said stem or spindle and extending in said chamber, said stirring device being adapted when the stem or spindle is moved to agitate the powdered carbon in said chamber, substantially as set forth.

8. In a carbon transmitter, the combination of a carbon-holder having a chamber for the reception of powdered carbon, a sleeve connected with the carbon-holder and having one end adapted for communication with the chamber thereof, a stem or spindle arranged to turn in said sleeve and having one end projecting beyond the rear end of the sleeve and provided with an enlargement by means of which it may be turned, and a stirring device carried on the opposite end of the stem or spindle and extending into the chamber in the carbon-holder, said stirring device being arranged, when the spindle or stem is turned, to agitate the carbon contained in said chamber, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

GODFREY \V. GOSS.

\Vitnesses:

ALBERT C. IIocKETr, GEORGE WASHINGTON Fox.

IOC 

